66715720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 156349440

約数和(自身を除く): 89633720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 173, 248, 310, 311, 346, 620, 622, 692, 865, 1240, 1244, 1384, 1555, 1730, 2488, 3110, 3460, 5363, 6220, 6920, 9641, 10726, 12440, 19282, 21452, 26815, 38564, 42904, 48205, 53630, 53803, 77128, 96410, 107260, 107606, 192820, 214520, 215212, 269015, 385640, 430424, 538030, 1076060, 1667893, 2152120, 3335786, 6671572, 8339465, 13343144, 16678930, 33357860, 66715720]

約数ペア:

[(1, 66715720), (2, 33357860), (4, 16678930), (5, 13343144), (8, 8339465), (10, 6671572), (20, 3335786), (31, 2152120), (40, 1667893), (62, 1076060), (124, 538030), (155, 430424), (173, 385640), (248, 269015), (310, 215212), (311, 214520), (346, 192820), (620, 107606), (622, 107260), (692, 96410), (865, 77128), (1240, 53803), (1244, 53630), (1384, 48205), (1555, 42904), (1730, 38564), (2488, 26815), (3110, 21452), (3460, 19282), (5363, 12440), (6220, 10726), (6920, 9641)]